The third point of view:
"Eww, I can't do this," Ailee dropped the cotton mop she was holding onto.
After the "little" stunt they pulled yesterday, their grandfather was not exactly happy with them. But then you should trust the twins, they narrated every single detail that led to the fight to him, hoping he would support them.
And yes, Grandfather was on their side until Grace and Philip's mothers argued that he was being partial to them.
When it comes to their cousin's mothers, you could say the kids were their copy. They were snobbish and rude and demanding and it was no surprise their kids took after them.
So to create peace, Grandpa decided to punish them on the account of disgracing their cousins in public - they guessed they all forgot about Grace tripping Neon in public.